need some help

[Salat]

Pleas help me with this error, i supose this will allow me to understand vb.net quicker.

this error appear:
An unhandled exception of type System.NullReferenceException occurred in a.exe
Additional information: Object reference not set to an instance of an object.

and point at this code:

        Dim a As System.Net.WebProxy
        Dim b As New System.Uri("w3cache.texasnet.pl:8080")
        a.Address = b

thanks for help

 

[Iceplug]

At risk of being wrong, I would say that you havent initialized the a = New WebProxy()